I have six Deco X55 they were working great for a year and recently the Slaves start disconnecting from the Main around 6AM (blinking red led).  Once they disconnect from the main a power cycle on the slave is require to get them to reconnect.  I have tried factory reseting and reinstalling all Deco’s with no change in behaviour.

All Deco’s have the latest firmware (1.4.0 Build 20240718 Release. 44385), WiFi router mode on, Fast roaming off, Beam forming on, Auto update on, Reboot on.

Has anyone else had and fixed this issue?